I am currently using the birth control pill Yasmin and have been doing so for about three months now. So far I haven't had any side effects, but today I couldn't help but notice a very sharp and sudden pain in the left side of my mid-calf on my right leg. It lasted less than a second but it caused my whole leg to practically convulse. I am aware that Yasmin can cause blood clots in the legs, though I was told that this was a very rare side effect and was probably nothing for me to worry about. However, I AM worried. My sister takes Yasmin as well, and has done so for over eight months without any side effects. I am 21, don't smoke, and have never had any history of anything related to this before.

Hi kari13,
Generally speaking a blood clot in the leg has other symptoms, ie., redness, warmth, swelling, etc. In the absence of any other symptoms (aside from a muscle spasm) in my opinion, a blood clot/DVT would not be my first impression.
Sincerely,
Theresa Jones, RN